I didn’t manage to do it______you explained how.
| A．until | B．unless | C．when | D．before |
---It_____ for a whole week. I think it’ll stop soon.
---Hard say. We’re getting into the rainy season now.
| A．has rained | B．has been raining |
| C．is raining | D．will rain |
I’m glad you’ve made great progress so far. Keep it up______ you must be successful.
| A．and | B．while | C．so | D．or |
---What do you think of the film?
---Cool! Never before _____ a better one.
| A．had I seen | B．I have seen | C．have I seen | D．I had seen |
Despite the great difficulty we had _____ out the plan, it paid off in the end.
| A．carrying | B．carried | C．to carry | D．carry |
Faced with_____ challenges, you should believe that your courage is what makes_____ difference.
| A．the; / | B．the; a | C．/; a | D．/; / |